docs: def created_by_column(self, obj):
          """ Return user who first created an item in Django admin """
          try:
              first_addition_logentry = admin.models.LogEntry.objects.filter(
                  object_id=obj.pk,
                  content_type_id=self._get_obj_ct(obj).pk,
                  action_flag=admin.models.ADDITION,
              ).get()
              return first_addition_logentry.user
          except admin.models.LogEntry.DoesNotExist:
              return None